# Math

posted by .

Mr Shen wished to enter the orange kite competition with an innovative kite of his own design. He did tests that showed an irregular quadrilateral design was best. The longest side (A) was twice the length of the shortest side (C). Side B was one and one-half times the shortest side (C). Side D needed to be 4" (4 inches) longer then side C. If the competition required that the perimeter of your kite must be 81", what were the dimensions of Mr. Shen's Kite?

Side C --- x
side A --- 2x
side B ----1.5x
side D ---- x+4

x + 2x + 1.5x + x+4 = 81
5.5x = 77
x = 14

Now I got the answers for A and B

A=28

B=21

I need help for answers C and D

• Math -

all that algebra went ok, and you have trouble with arithmetic?

C = x = 14
D = x+4 = 18

A+B+C+D = 28+21+14+18 = 81

## Similar Questions

1. ### geometry

One side of a kite is 4 cm less than four times the length of another side. The perimeter of the kite is 59 cm. Find the lengths of the sides of the kite.
2. ### Math

Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the point on the ground direcly below the kite, find the length of the kite string.. Please help!!!
3. ### math

Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the point on the ground direcly below the kite, find the length of the kite string.. Please help!!!
4. ### Math

Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the point on the ground direcly below the kite, find the length of the kite string.. Please help!
5. ### math

Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the point on the ground direcly below the kite, find the length of the kite string.. Please help!!!
6. ### Trigonometry

Height of a Kite A 100-foot line is attached to a kite. When the kite has pulled the line taut, the angle of elevation to the kite is approximately 50°. Now everybody lets approximate the height of the kite!
7. ### Math

Karen is making a kite for her art class. To figure out the dimensions of her final kite, she studies a model of a kite shown below. She wants her kite to be similar to the model her teacher made. If the height of the right triangle …
8. ### Math

Mr Shen wished to enter the orange kite competition with an innovative kite of his own desgin. He did tests that showed an irregular quadrilateral design was best. The longest side (A) was twice the length of the shortest side (C). …
9. ### Maths

Two observers P and Q 15m apart observe a kite in the same vertical plane and from the same side of the kite.The angle of elevation of the kite from P and Q are 35 degree and 45 degree respectively.Find the height of the kite to the …
10. ### math

Sam is flying a kite. The length of the kite string is 80 meters, and it makes an angle of 75° with the ground. The height of the kite from the ground is... A.20.27 B.61 C.77.27

More Similar Questions